表を表示
| 1980 | 770 | 1996 | 2,228 | 2012 | 4,153 |
| 1981 | 851 | 1997 | 2,264 | 2013 | 4,420 |
| 1982 | 843 | 1998 | 2,153 | 2014 | 4,337 |
| 1983 | 818 | 1999 | 1,994 | 2015 | 4,325 |
| 1984 | 854 | 2000 | 2,046 | 2016 | 4,181 |
| 1985 | 803 | 2001 | 1,818 | 2017 | 4,574 |
| 1986 | 959 | 2002 | 1,829 | 2018 | 4,830 |
| 1987 | 1,037 | 2003 | 2,015 | 2019 | 5,035 |
| 1988 | 1,213 | 2004 | 2,289 | 2020 | 5,108 |
| 1989 | 1,461 | 2005 | 2,582 | 2021 | 5,197 |
| 1990 | 1,499 | 2006 | 2,865 | 2022 | 5,535 |
| 1991 | 1,751 | 2007 | 2,920 | 2023 | 5,979 |
| 1992 | 1,833 | 2008 | 3,361 | 2024 | 6,498 |
| 1993 | 1,884 | 2009 | 3,040 | 2025 | 6,858 |
| 1994 | 1,948 | 2010 | 3,561 | 2026 | 7,238 |
| 1995 | 2,123 | 2011 | 4,015 | | |
表を表示
| 1980 | 677 | 1996 | 2,799 | 2012 | 7,039 |
| 1981 | 740 | 1997 | 2,774 | 2013 | 7,664 |
| 1982 | 831 | 1998 | 2,906 | 2014 | 7,859 |
| 1983 | 909 | 1999 | 3,156 | 2015 | 8,403 |
| 1984 | 973 | 2000 | 3,353 | 2016 | 9,272 |
| 1985 | 1,150 | 2001 | 3,559 | 2017 | 1.01万 |
| 1986 | 1,371 | 2002 | 3,986 | 2018 | 1.08万 |
| 1987 | 1,563 | 2003 | 4,424 | 2019 | 1.15万 |
| 1988 | 1,665 | 2004 | 4,682 | 2020 | 1.17万 |
| 1989 | 1,792 | 2005 | 5,004 | 2021 | 1.18万 |
| 1990 | 1,940 | 2006 | 5,756 | 2022 | 1.26万 |
| 1991 | 2,259 | 2007 | 5,847 | 2023 | 1.4万 |
| 1992 | 2,415 | 2008 | 6,388 | 2024 | 1.54万 |
| 1993 | 2,582 | 2009 | 6,341 | 2025 | 1.64万 |
| 1994 | 2,665 | 2010 | 6,870 | 2026 | 1.75万 |
| 1995 | 2,725 | 2011 | 7,355 | | |
表を表示
| 1980 | 3,210 | 1996 | 7,943 | 2012 | 8,823 |
| 1981 | 3,640 | 1997 | 7,879 | 2013 | 8,768 |
| 1982 | 4,083 | 1998 | 8,027 | 2014 | 8,989 |
| 1983 | 4,275 | 1999 | 8,178 | 2015 | 9,136 |
| 1984 | 6,095 | 2000 | 8,451 | 2016 | 9,789 |
| 1985 | 6,470 | 2001 | 8,539 | 2017 | 1.01万 |
| 1986 | 7,077 | 2002 | 8,886 | 2018 | 1.02万 |
| 1987 | 7,179 | 2003 | 8,855 | 2019 | 1.02万 |
| 1988 | 6,893 | 2004 | 8,652 | 2020 | 1.03万 |
| 1989 | 6,934 | 2005 | 8,563 | 2021 | 1.03万 |
| 1990 | 7,224 | 2006 | 8,327 | 2022 | 1.01万 |
| 1991 | 7,604 | 2007 | 8,098 | 2023 | 1.04万 |
| 1992 | 7,279 | 2008 | 8,462 | 2024 | 1.06万 |
| 1993 | 7,238 | 2009 | 8,003 | 2025 | 1.09万 |
| 1994 | 7,402 | 2010 | 8,047 | 2026 | 1.12万 |
| 1995 | 7,962 | 2011 | 8,575 | | |